# Questions Asked onMarch 27, 2015

1. ## math

Sam is flying a kite. The length of the kite string is 80 meters, and it makes an angle of 75° with the ground. The height of the kite from the ground is... A.20.27 B.61 C.77.27

2. ## Chemistry

A woman expends 96 kJ of energy in walking a kilometer. The energy is supplied by the metabolic breakdown of food intake and has a 35 % efficiency. If the woman drives a car over the same distance, how much energy is used if the car gets 8.7 km per liter

3. ## programming concepts

Input a list of positive numbers ( terminated by 0) into an array, find the mean ( average) of the numbers in the array, and output the result. Use a subprogram to input the numbers, a function to find the mean, and a sub-program to output the result.

4. ## Civics to Ms.Sue

3. Which one of the following statements is accurate for the Articles of Confederation? A. There was only one central court. B. Each state could veto a presidential decision. C. There was no president. D. Interstate commerce could be regulated. My sister

5. ## Algebra 1

a ball is thrown into the air with an upward velocity of 32 ft per second. Its height h in feet after t seconds is given by the function h(t)=-16t^2 +32t+6. How long does it take the ball to reach its maximum height? What is the balls maximum height? a- 22

6. ## Math

Tasha is planning an expansion of a square flower garden in a city park. If each side of the original garden is increased by 7m the new total area will be 144m^2. Find the length of each side of the original garden.

7. ## goverment

What is the civil service and how do people join?

8. ## math

A class survey in a large class for first-year college students asked, “About how many minutes do you study on a typical weeknight?” The mean response of the 463 students was = 118 minutes. Suppose that we know that the study time follows a Normal

9. ## Civics

4. An agreement to count slaves as three-fifths of a person was related to A. the denial of African Americans the right to vote. B. the number of Senators each state would have. C. the way in which population would be counted in each state. D. the creation

10. ## Chemistry

C2H5OH(l) + 3 O2(g) -> 2 CO2(g) + 3 H2O(g) During an experiment 10.00 g of ethanol is completely burned in air to release CO2(g) and H2O(g) as shown in the equation above. During the combustion, 296.6 kJ of heat energy is released. What is the molar

11. ## us history

Which of the following best describes the Declaration of Sentiments? a) a document that demanded equality for women based on the ideas in the Declaration of Independence b) a public speech given by Elizabeth Cady Stanton that declared women equal to men,

12. ## Chemistry

Tetraphosphorus (P4), commonly known as white phosphorus, forms different compounds with chlorine (Cl2) depending on the amount of chlorine present. If chlorine is limited, phosphorus trichloride (PCl3) is formed. If there is an excess of chlorine,

13. ## us history

How did the presence of the border states illustrate a difference between the Union and Confederacy? The Confederacy had more internal political disagreements than the Union. The Confederacy had more states on its side than the Union. The Union's

14. ## us history

The picture depicts a camp meeting during the Second Great Awakening. How might a woman attending the meeting feel? Angry that she is only allowed to watch but not participate Frustrated about having to keep her excitement to herself Inspired to renew her

15. ## English

1. Choose the letter of the one sentence in which quotations and underlining are correctly used. A. I hope, commented Josh, that I do well enough to make it to the final race. B. "I hope," commented Josh, "that I do well enough to make it to the final

16. ## Math

What is the value of c so that y=x^2+15x+c is a perfect square trinomial?

17. ## English

I need a good thesis statement about dreams

18. ## Engineering Economics

A granary has two options for a conveyor used in the manufacture of grain for transporting, filling, or emptying. One conveyor can be purchased and installed for $70,000 with$3,000 salvage value after 16 years. The other can be purchased and installed for

19. ## Civics

7. The original purpose of the Constitutional Convention of 1787 was to A. develop the principle of states' rights. B. solve the slavery issue. C. revise the Articles of Confederation. D. elect the first president of the United States. C?

20. ## Civics

2. The Eighteenth Amendment, "Prohibition," was reversed by the _______ Amendment. A. Twentieth B. Twenty-first C. Nineteenth D. Twenty-second B?

21. ## electromagnetism

two equal positive charges q are on the y axis,one at y=+a and the other at y=-a. a)show that the electric field on the x axis with < Ex=2kqx/(x^2+a^2)^3/2 > . b)show that near the origin,when x is much smaller than a,E,is approximately 2kqx/a^3.

22. ## chemistry

Calculate the pH of a buffer which contains 0.0500 M pyruvic acid and 0.0450 M sodium pyruvate. (The Ka of pyruvic acid is 4.1 × 10–3)

23. ## Art

Artists make shapes in the background smaller than shapes in the foreground to communicate their distance from the viewer.How else might a landscape artist show shapes in the background to depict their distance from the viewer? A.Show shapes with bright

24. ## math

Why Was the Engineer Driving the Train Backwards?

25. ## Math

Andrew has a combination of 8 quarters, dimes and nickels that add up to a value of 95 cents. How many of each coin does Andrew have?

26. ## us history

Which answer best describes how many Southern states responded to the Thirteenth Amendment? The states created new laws that further expanded the rights of the former slaves. The states supported the Amendment and granted the former slaves all rights of

27. ## us history

Which of these statements best compares the economic development of the North and South during the first half of the 19th century? More factories and railroad lines were built in the North than in the South. The North developed more trade connections with

28. ## us history

ow did Floridians vote during the presidential election of 1860? They voted for the pro-slavery Southern Democrat. They voted for the moderate Republican.. They were split between Republicans and Southern Democrats. Their votes went uncounted due to

29. ## Algebra 1

Use the graph of f(x) to find the solutions to the equation f(x)=0 a-2 -10 & 2 b_ 2 10 & -2 c- 1 10 d- no solutions

30. ## math

Two positive integers aer in the ratio 2:5. If the product of the two integers is 40, find the larger integer.

31. ## statistics

Which of the following statements are true? (A) In testing the hypothesis for the equality of two population proportions, the acceptance region for the null hypothesis will be wider than the confidence interval for two population proportions, assuming the

32. ## us history

How was General William Tecumseh Sherman's March to the Sea negative for Southern civilians? He burned the cities of Atlanta and Vicksburg. He destroyed homes and factories. He freed slaves and used them as soldiers. He took no civilian prisoners. i think

33. ## chemistry

It is found that an average volume of 24.25 ml of approximately 0.1 M NaOH is required to reach an endpoint in a titration with 25.00ml of 0.09917 M HCl solution. What is the NaOH concentration? Make sure to give answer to four significant figures.

34. ## Algebra 1

A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation- y= -0.04x^2+8.3x,where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters of the

35. ## Algebra 1

A physics student stands on top of a hill that has an elevation of 56 meters. He throws a rock and it goes up into the air and then falls past him and lands on the ground below. The path of the rock can be modeled by the equation - y=-0.04x^2+1.3x+56 where

36. ## Ethics in Technology

Which of the following was NOT a result of the adoption of mechanical calculators? A. Less demand for “superstars” who could rapidly compute sums by hand B. Higher productivity of bookkeepers C. Higher salaries of bookkeepers D. Proliferation of

37. ## English

1. The basis is another word for ________. A. the overall thesis of the essay B. selecting categories C. the order of classification D. guidelines provided by a professor

38. ## vector algebra

Using Green's theorum evaluate the integral [ from c x^2ydx-xy^2dy]. Where c is the closed curve along the circle x^2+y^2 = 4

39. ## Travel

What are the 4 regions in the Caribbean with islands?

40. ## English vocab

if you BLANK someone's mail, then you seize it before the person receives it; however, it is illegal to take someone's mail, so the police might attempt to BLANK you and put you in jail. What are the two blanks?

41. ## math

The coordinates of (triangle) ABC are A(-3,-1 ) , B( 5,1 ) and C (2,4) (i) Calculate the length of AB , BC and AC (ii) Hence, show that (triangle) is a right- angled triangle

42. ## Personal Finance

The global economy seems to be in a debt crisis. The National Debt (what we owe) of the United States is now over $18 Trillion dollars and growing every day. Our Gross Domestic Product (our income) is around$16 Trillion. That means our debt is more than

43. ## personal selling

How ICT development impact on personal selling

44. ## math

The function f(x) = cx/2 x+3 satisfies f(f(x))=x for all real numbers x\= -3/2. Find c.

45. ## american Literature

(1) "It's positively cruel!" pouted Jennie Allen, one of a group of girls occupying a garden bench in the ample grounds of Miss Stearne's School for Girls, at Beverly. "It's worse than that; it's insulting," declared Mable Westervelt, her big dark eyes

46. ## math

Some functions that aren't invertible can be made invertible by restricting their domains. For example, the function x^2 is invertible if we restrict x to the interval [0,\inf), or to any subset of that interval. In that case, the inverse function is-\sqrt

47. ## P H Y S I C S

A lumberjack (mass = 98.3 kg) is standing at rest on one end of a floating log (mass = 258 kg) that is also at rest. The lumberjack runs to the other end of the log, attaining a velocity of +3.69 m/s relative to the shore, and then hops onto an identical

48. ## computers

Two technicians are discussing the interface between system memory and the motherboard. Technician A says data errors caused by speed mismatches are handled by making the memory run a parity check for every bit accessed. Technician B says those speed

49. ## computers

How is the SIMM an improvement on the SIPPs and DIPs that preceded it? a. SIMMs are larger and thus hold more memory. b. Every SIMM houses a row of pins on each side. c. The SIMM is soldered to the system board.

50. ## Chemistry help

How many electrons are in p orbitals in an atom of oxygen? I answered 8 and 6 but it's wrong. Can anyone pls help.

51. ## computers2

If you're required to install memory in pairs for the system to work, what type of memory module are you most likely using? A. SIMM B. SIPP c. DIPP

52. ## american Literature

(1) Alexander the Great died when he was quite young. He was but thirty-two years of age when he ended his career, and as he was about twenty when he commenced it, it was only for a period of twelve years that he was actually engaged in performing the work

53. ## Chemistry 1002

Calculate the standard entropy change for the following reaction at 25 °C. 2 Al (s) + 3 ZnO (s) --> Al2O3 (s) + Zn (s) answer is in J/K mol

54. ## physical science

a parachutist jumps from an aeroplane.he has a mass of 80kg.initially,he 'free-falls',before his parachute opens.what is his initial acceleration

55. ## social studies

Which of the following is not associated with el nino?

56. ## English

I need help figure out to cite this source that I got on the computer. On google search Operation Just Cause Joint History Office am not sure how to cite it.

57. ## Physics

A person pushes on a 56-kg refrigerator with a horizontal force of -260 N; the minus sign indicates that the force points in the -x direction. The coefficient of static friction is 0.58. (a) If the refrigerator does not move, what are the magnitude and

58. ## Chemistry

The thermochemical equation which is associated with ∆H°f, the standard enthalpy of formation, for urea, CO(NH2)2 (s), is: CO (g) + 2NH3 (g) --> CO(NH2)2 (s) + H2 (g) CO (g) + 2H2 (g) + N2 (g) --> CO(NH2)2 (s) C (s) + O (g) + N2 (g) + 2H2 (g) -->

59. ## dps

log 10 power 25 +10 log 10 power 4

60. ## final project

Hi I'm working on a final project and wanted to know if I coded it right Well a 45 yr old woman goes in for a headache. Undetermined why. I put code 99202 for np ov. Then returns for ov a week later hot compresses worked but is swelling exam shows

61. ## math

The drama club needs to make 30 costumes for the school play. Each costume uses 3 3/4 yards of material. If a bolt of material contains 20 yards and if the fabric store sells material only in full bolts,how many bolts should the drama club buy?

62. ## chem

You need to make up 2 litres of a 4 M solution of sodium chloride. What mass of sodium chloride do you need? (mwt of sodium chloride = 58.44)

63. ## math/stats

Which of the following statements are true? (A) In a two-tail test of hypothesis for a population mean the decision rule is to reject H0 if the test statistic lies outside of the action limits. (B) A statistical test of hypothesis is performed under the

64. ## math/stats

A sample of 50 items is selected to determine whether or not to accept the hypothesis that a population means differs from a value of 20. The sample mean and standard deviation are 18 and 7, respectively. The null hypothesis is not rejected, which of the

65. ## math

the scale listed on the box containing a model ship is 1 inch to 8 feet. which proportion can be used to find the actual length of the ship if the length of the model is 5 feet

66. ## statistics

A sample of 50 items is selected to determine whether or not to accept the hypothesis that a population means differs from a value of 20. The sample mean and standard deviation are 18 and 7, respectively. The null hypothesis is not rejected, which of the

122. ## math

to the nearest mile,how many miles did the Navajo travel if 1 inch= 4 miles

123. ## finite math

Sam wants to invest the same amount at the end of every 3 months so that he will have 4000 in 3 years. The account will pay 6% compounded quarterly. How much should he deposit each quarter.

124. ## Algebra 1

a boulder is thrown launched into the air with an upward velocity of 184 ft per second. Its height h in feet after t seconds is given by the function h(t)=-16t^2 +184t+6. How long does it take the boulder to reach its maximum height? What is the boulder

125. ## vector algebra

For any two vectors u and v show that (u.v)^2-[(u.v)×v].u = u^2v^2

126. ## vector algebra

Using the Divergence theorum evaluate the flux integration from s vector A.ds where A = xi^+yj^+zk^ and s is the complete surface of the hemisphere which has its centre at the origin and a radius of 6 units.

127. ## Math

3. A rectangular prism has a width of 92 ft and a volume of 240 ft3. Find the volume of a similar prism with a width of 23 ft. Round to the nearest tenth, if necessary. (1 point) 3.8 ft3 60 ft3 15 ft3 10.4 ft3 Please help me work this out! I'm not sure how

128. ## vector algebra

Show that vector del(r^2) = 2vector r

129. ## Civics

1. A bicameral legislature features A. one hundred equal representatives. B. two legislative bodies. C. four equal legislative bodies. D. one legislative body ?

130. ## mathematical physics

Solve the initial initial value problem d^2x/dt^2+2DX/dt-3x =0, x(2π) = 0, x(2π) = 13

131. ## math

the world's largest cube puzzle in Knoxville measures 6 feet on each side. The scale factor between a standard cube puzzle and largest is 1/24. Find the surface area and volume of the standard cube puzzle. Answer is 0.375ft^2/0.015625ft^3 Not sure how they

132. ## si7

is there a way where i can upload i picture with my question

133. ## mathematical physics

Show that : (I) u = e^xsiny is a solution of Laplace's equation. (ii) u= x^2+t^2 is a solution of the wave equation.

134. ## goverment

What are some roles that the president plays in the U.S. government?

135. ## general

anyopne know any good personal math tutors onine

136. ## mathematical physics

Obtain the temperature distribution u(x,t) in a laterally insulated rod of length L if both ends on the road are kept at 0°c and the initial temperature distribution in the bar is: u(x,0) = 6sin[πx/L]

137. ## Science

Salinity of the ocean A)is generally very low B)changes with climate C)decreases with increase in temperature D)increases where a river meets the ocean I think its A but I'm not sure I just want to make sure.

138. ## math

Briana wants to divide 5/8 pound of soil evenly among 4 pots how much soil will be in each pot

139. ## biddies

May I tickle your fancy with a question? Yes I may. What is flux? Dont send a wiki article plssszzzz

140. ## math

75 pupils sat for a Science Test. The average score was 58 marks. If the average score of the girls was 62 marks and the average score of the boys was 56 marks, how many boys sat for the test?

141. ## General Question.

What colour represents Distrust Caring Loyalty

142. ## Economics

What compound annual growth rate is represented by these figures? (Show working). China`s GDP was $1.9 trillion in 2004 and$10.3 trillion in 2014

143. ## english

arrange the sentences to good dialoge. a: did you hear the good news? a: you think so? a: i got a promotion at my job b: did you really? b: well, congratulations a: thank you a: seriously, i am so excited a: really? b: yes. good for you b: no, i haven't b:

144. ## Social Studies

Which of the Following most contributed to the rise of Sumer? A: Farming B:Military power C:isolated location D:Trade